Power Supply; Atx 12V Power Connector: Jpw1 - MSI 800 User Manual

2.4 Power Supply

ATX 20+4-Pin Power Connector: ATX1
This connector allows you to connect to an ATX power supply. To con-
nect to the ATX power supply, make sure the plug of the power supply is
inserted in the proper orientation and the pins are aligned. Then push down the
power supply firmly into the connector. The power connector supports instant
power on function which means that system will boot up immediately when the
power supply connector is inserted on the board.
This barebone provides you an additional 4-pin power supply cable for
connecting to the 24-pin power connector.
20
11
10
1
ATX1

ATX 12V Power Connector: JPW1

This 12V power connector is used to provide power to the CPU.
4 2
3
1
JPW1
Chapter 2 - Mainboard Hardware
ATX1 Pin Definition
PIN SIGNAL PIN
1 +3.3V 11
2 +3.3V 12
3 GND 13
4 +5V 14
5 GND 15
6 +5V 16
7 GND 17
8 PW_OK 18
9 5V_SB 19
10 +12V 20
JPW1 Pin Definition
PIN SIGNAL
1 GND
2 GND
3 12V
4 12V
2-5
SIGNAL
+3.3V
-12V
GND
PS_ON
GND
GND
GND
-5V
+5V
+5V